Landscape Architecture General PS & E Guide · Irrigation Plans 5-2 Caltrans Landscape Architecture PS & E Guide The condition of existing irrigation crossovers must be evaluated

Irrigation Plans 5-1Caltrans Landscape Architecture PS & E Guide

Contents

Irrigation Plans5-1 Standard Items Required on Irrigation Plans5-1 General 5-2 Valves and Sprinklers 5-2 Controllers and Backflow Preventers 5-2 Backflow Preventers 5-2 Gate Valves and Ball Valves 5-2 Booster Pump Systems

Irrigation Design5-2 Questions the Designer Should Ask Themselves5-3 A Review of the DON’TS of Good Design5-3 Irrigation Legend Options 5-3 Option 1 5-3 Option 25-3 Irrigation Notes5-3 Existing Irrigation Facilities5-4 Standard CADD Irrigation Symbols 5-4 Cells 5-4 Levels 5-4 Cell Line Weights for Standard

Irrigation Symbols 5-4 Cell Text Weights for Standard Irrigation

Abbreviations 5-4 Instructions for Using EXISTING and

PROPOSED Irrigation Symbols5-4 Standard Irrigation Symbols/ Irrigation Legend 5-7 Remote Irrigation Control System (RICS)5-13 Valve Codes5-13 Non-Standard Irrigation Symbols / Irrigation Legend5-14 Valve Code for RICS5-14 Approved Non-Standard Valve Code5-15 Irrigation Symbols Sheet w/Cadd Cell Names5-17 Irrigation Control Wire Conduit Sizing Charts5-17 Irrigation Facilities to be Installed “On Bridge”

Or “In Bridge” 5-17 Highway Planting Projects 5-17 Highway Construction Projects5-18 Irrigation Notes5-18 Irrigation Notes That Should Not Be Shown On Plans5-18 Acceptable Pipe Sizing Chart5-18 Unacceptable Pipe Sizing Chart5-19 Irrigation Restoration Projects5-21 Irrigation Plan w/CADD Information

5

Landscape Architecture PS & E GuideSECTION 5

Irrigation Plans

Revised January 2008


Irrigation Plans

Standard Items Required on Irrigation Plans•StandardNorthArrow.•CU“00000”EA“000001”(lowerrightcorner)

(CU=ChargeUnit),(EA=ExpenditureAuthorization).•Scale(plansheets,i.e.,1:50).• “BEGINIRRIGATIONWORK,”“ENDIRRIGATIONWORK,”

and“LIMITOFIRRIGATIONWORK”identifiedwithstationingandpostmileforALLprojects.

•REGISTRATIONSEAL–Signature(CADDsignatureauthorization)(LicensedLandscapeArchitect,RegisteredCivilEngineer,orRegisteredElectricalEngineerNo.andcurrentlicenseexpirationdateinsideregistrationsealinupperrightcorner)IndividualPlanSheets-Individualprojectplansheetsshallbeaffixedwithonelicenseseal,number,andsignatureofthelicensedcivil,electricalengineer,mechanicalengineer,geologist,architectorlandscapearchitectwhoisknowledgeableabout,andinresponsiblechargefordevelopingthatplan.Licensedtrafficengineersarenotauthorizedtosignplansorspecifications.

•SIGNATUREBLOCK–Theprintedname,registrationnumberandlicenseexpirationdateshallappearwithinthepreprintedregistrationsealalongwiththeregistrant’ssignatureanddatesignedoutsidetheregistrationsealandwithinthesignatureblockonthelineprovidedintheupperrighthandcornerofthesheet.Thesignaturedesignationmustappearwiththeregistrant’ssignature.Donotaddjobtitlessuchas“UtilityEngineer”,“TrafficEngineer”,“ProjectStudiesEngineer”,etc.

•MatchLinesidentifiedas“MATCHTOSHEETX-XX.”•Centerlinestationinglabeledat100-feetintervalsora

minimumoftwostationspersheetandlinedesignations(plansheetsonly).Stationtickmarksat10feetusing 1through9only.

• Existingrightofway(R/W)linesshownandidentified(verifiedbyR/WBranch).

• Existingfencesandgatesshown(verifiedfromfieldnotes).•Newfencesandgatesshownandidentified.• Existingguardrailings,barriersandsoundwallsshown

(verifiedfromfieldnotes).• Existingditchflowlinesshown(verifiedfromfieldnotes).

• Existingcurbsanddikesshown(verifiedfromfieldnotes).• Existingpavements,sidewalksshown(verifiedfrom

fieldnotes).•Cutandfilllinesshown(verifiedfromfieldnotes).•Slopefactorsanddirectionarrowsshown(i.e.,2:1,3:1)

(Showarrowpointingdownhill).• “IRRIGATIONPLAN”(sheettitle)and“I-#”forIrrigation

Planprojectsor“HP-#”forHighwayConstructionprojects(sheetidentificationcode)inlowerrightcorner.

•AbbreviationsandsymbolsconsistentwiththoseshowninIrrigationLegendand/orconformtoStandardPlansH1&H2.IrrigationLegendconformstoformatusedonStandardPlanH2.

•Pipeappropriatelylabeled(size)and/orprovidedforinapipesizingchartorirrigationnotes.

•Calloutsforirrigationitemsshownwithappropriatesizeandabbreviationasunder“StandardIrrigationSymbols”and“StandardSprinklerSymbols”inthissection.

• “ConnecttoExistingSystem”symbolshownatall PointsofConnectionbetweenexistingandproposedirrigationfacilities.

GeneralIrrigationsystemsandcomponentsshallbedesignedtosustaintheplantingwhileconservingwater,minimizingmaintenanceandworkerexposuretotraffic.Thedesignshouldbesimple,efficient,andstraightforward.Irrigationconceptsutilizedshouldconformtolocalwaterconservationgoals.

Irrigationsystemsshouldbesimple,easytooperateandmaintain.FacilitiesneedtobeadjacenttotheR/W,nearaccessgatesoradjacenttoMaintenanceVehiclePulloutsoraccessroads.Reducethenumberofirrigationcomponentstotheminimumtoappropriatelyirrigatethearea.

Standard,commerciallyavailableirrigationcomponentsshouldbeusedandspecialfeaturesshouldnotbespecifiedunlesstheyarerequiredtosolveuniqueproblemsofthesite.


Theconditionofexistingirrigationcrossoversmustbeevaluatedpriortoincorporatingintoahighwayplantingproject.Generally,iftheexistingcrossoverisover15yearsolditisadvisabletoinstallnewcrossovers.

Valves and SprinklersLocatecontrolvalvesadjacenttoaccessgates,maintenancevehiclepullouts,maintenanceaccessroadsorotherareasawayfromtraffic.

Controllers and Backflow PreventersThelocationoftheseitemsshouldbereviewedwithmaintenanceinthefield.

Controllerenclosurecabinetsshallbelocatedsothattheuserisfacingtrafficwhenworkingoncontrollers.Controllerenclosurecabinetsshallbelocatedoutsidetheclearrecoveryzonewheneverpossible.

Backflow PreventersTheuseofreducedpressureprinciplebackflowdevicesisrequiredforhighwayplantingprojects.Masterremotecontrolvalvesshouldbeusedatallpressuredwatersourcesdirectlydownstreamofthebackflowpreventers.Backflowpreventersshallbelocatedinenclosures.

Gate Valves and Ball ValvesGatevalvesaretobeusedtodividelargeirrigationsystemsintosmallersectionssowhenthereisamalfunctionthebadsectionmaybeisolatedtokeeptheremainingsectionsfunctional.Gatevalvesaregenerallyinstalledoneachsideofirrigationcrossovers.

BallvalvesareusedinfrontofElectricRemoteControlValvesthathavebeenmanifolded(clustered).Thisallowsmaintenancetoservicethevalveswithoutthemainlinehavingtobedrainedandfloodingthevalveboxes.

DoNOTuseballvalvesatirrigationcrossovers.Ballvalvesthatareclosedrapidlycancausewaterhammer.

Booster Pump SystemsSeetheMemorandumonBoosterPumpPlansontheLandscapeArchitecturewebsiteat:http://www.dot.ca.gov/hq/LandArch/policy/pdf/booster_pump.pdf

Questions the Designer Should Ask Themselves

•Arecontrollers,backflowpreventersandotherserviceableequipmentinsafeandvisiblelocations?AretheyplacedadjacenttoaMVP,accessgate,accessroadorotheraccessiblelocation?

•Doesthisdesignminimizeworkerexposuretotraffic?•Areremotecontrolvalvesclustered?•Aretheirrigationvalves,sprinklersandrisers

maintainable,protectedfromvandalismandotherdamage,andinlocationsawayfromtrafficwheretheycanbesafelyserviced?

•Areirrigationenclosurecabinetsplacedsotheuserisfacingtraffic?

•Areplantswithdifferentwaterrequirementswateredwithseparatevalves?

• Istheproposedirrigationsystemsimpletounderstand,operateandmaintain?Doesthesystemminimizeirrigationheadswhileprovidingappropriatecoverage?

•Doestheproposedirrigationsystemuseoraddressreclaimedwater?Ifreclaimedwaterisused,hasitreceivedtertiarytreatmentandistheirrigationsystemcompatible?Areexistingwaterandpowersources,andirrigationfacilities(boosterpumps,backflowpreventers,etc.)functioningandadequatefortheproposedirrigationsystem?

•Willmaintenancepersonnelrequireadditionaltrainingtooperatetheproposedirrigationsystems?Havethespecialprovisionsbeenwrittentoprovidetraining?

• Ifexistingirrigationcrossovers,waterlinecrossovers,sprinklercontrolcrossoversandbridgesupplylinesaretobeutilizedaretheystillthere,ingoodconditionandadequatelysizedfortheproject?Avoidtheuseofcrossoversthatare15yearsoldorolder.

•Aretreesthatarelocatedinoverheadwatered groundcoverareasbeingprovidedwithsupplementalbasinirrigation?

• Ifthisisarehabilitationproject,willtheproposedimprovementsmaketheexistingirrigationsystemeasiertomaintain?

Irrigation DesignGeneral continued

http://onramp.dot.ca.gov/hq/traffops/otrafsaf/tasas/Highway%20Information/sequence.htm

http://onramp.dot.ca.gov/hq/traffops/otrafsaf/tasas/Highway%20Information/sequence.htm


A Review of the DON’TS of Good Design•Locatevalvesorsupplylinesnexttotraveledwayifother

locationsareavailable.• Locatevalvesonoutsideofcurves.• ExpecttheContractortopullold2”GSPsupplyline

(watercrossover)outofaconduit(irrigationcrossover)andreplaceitwithanewsupplyline.

• Expect30yearoldasbestoscementpipeunderroadwaystobeuseable(verifytheircondition).

• Expecttouseanexistingirrigationsystem,especiallyexistingirrigationcrossoversthataremorethan 15yearsold.

• LocateMaintenanceVehiclePulloutsinthemiddleoflooprampsorattheendoframpsonembankmentslopes.

• Locateirrigationcrossoverswithinnarrowpart ofgoreareas.

•Designcomplicatedirrigationsystemsthataredifficult tomaintain.

Irrigation Legend Options

Option 1UseStandardPlanH2fortheirrigationlegend.TouseStandardPlanH2,preparethemostcurrentversionofStandardSpecialProvision,“StdPln_A##-##-##”indicatingthosestandardplansthatarepertinenttotheproject.

Iftheirrigationplancontainsnon-standardirrigationequipment,eitherexistingorproposed,forwhichthereisnostandardsymbol(perStandardPlanH2),developanewsymbol(includinganitemdescriptionandabbreviation,ifnecessary).

Note: Placethenewsymbolinalegendonthefirstsheetoftheirrigationplans.Ifthereisnotenoughroomtoshownon-standardsymbolsonthefirstsheetoftheirrigationplansanotemustbeaddedtodirecttheContractortowherethelegendislocatedintheplans,i.e.,SeesheetSD-1forIrrigationLegend.

Option 2PlaceanIrrigationLegendonthefirstsheetoftheirrigationplansforproposedandexistingirrigationfacilities.Showonlythesymbols(withtheiritemdescriptionandabbreviation)beingusedontheproject.Thesymbols(withtheiritemdescriptionandabbreviation)shallbethesameasthoseshownonStandardPlanH2.

Substitutingoralteringstandardsymbolsoritemdescriptionsisnotallowed.Intheeventthatnon-standarditemsareneeded,anewsymbol(includinganitemdescriptionandabbreviation,ifnecessary)shouldbedevelopedandaddedtothelegend.

Note:Ifthereisnotenoughroomtoshownon-standardsymbolsonthefirstsheetoftheirrigationplansanotemustbeaddedtodirecttheContractortowherethelegendislocatedintheplans,i.e.,SeesheetSD-1forIrrigationLegend.

Irrigation NotesIrrigationnotesmustbeshownonthefirstsheetoftheirrigationplans. OR IfthereisnotenoughroomfortheirrigationnotesonthefirstsheetoftheirrigationplansanotemustbeaddedtothefirstpagetodirecttheContractortowheretheirrigationnotesarelocatedintheplans,i.e.,SeesheetSD-1forIrrigationNotes.

Existing Irrigation FacilitiesStandardsymbolsanditemdescriptionsforexistingirrigationfacilitiesarestoredelectronicallyintheCaltransCellLibrary.Theidenticalsizeandlineweightmustbeusedandshownontheplans.Existingirrigationsymbolsarecomposedofdashedlines.Thesesymbolswerehanddrawnandnotcreatedbyuseofastandarddashedline.UsethesymbolsintheCaltransCellLibrarytogetanaccuratesymbol. OR BaseplansmaybefrompreviousprojectplansbyusingthedropoutprocesswhetherornotthesymbolsmatchthoseshownintheStandardPlans.PlaceaLegendontheplans. OR IftheplansareCADDdrawn,thesymbolsforexistingfacilitiesshouldbedashedsymbolsasindicatedinStandardPlanH2.

Non-standardsymbolsmustbeplacedinalegendonthefirstsheetoftheirrigationplans.

Note:Ifthereisnotenoughroomtoshownon-standardsymbolsonthefirstsheetoftheirrigationplansanotemustbeaddedtodirecttheContractortowherethelegendislocatedintheplans,i.e.,SeesheetSD-1forIrrigationLegend.


Standard CADD Irrigation SymbolsStandardsymbolsanditemdescriptions(includingabbreviations)shownontheStandardPlans“PlantingandIrrigationSymbols,”sheetH2andthestandardsprinklersymbolsdiscussedlaterinthissection,shallbeusedforIrrigationPlans.

Substitutingoralteringstandardsymbolsoritemdescriptionsisnotallowed.Intheeventthatnon-standarditemsareneeded,anewsymbolshouldbedeveloped.Donotcombinestandardandnon-standardsymbolsanddescriptions.

CellsTheCADDcellnamesforeachexistingandproposedsymbolarefoundintheCaltransCADD Cell Library(seepage5-15).

LevelsCellsforproposeditemsareplacedonlevel50.Cellsforexistingitemsshouldbeplacedonlevel29andnotlevel5.Level5isadropoutlevelandusingthislevelwiththedashedsymbolsmakesthosesymbolshardtoseeonthereproducedplans.Itissuggestedtousethedashedexistingsymbolsonanundefinedlevel,seepage2-3forundefinedlevelsavailable.

Cell Line Weights for Standard Irrigation SymbolsTheCADDlineweightforallcells(newandexisting)shallbe“1”exceptforthefollowing:

ControlandNeutralConductors 0 DuctileIronPipe(DIP)(SupplyLine)(Main) 3 GalvanizedSteelPipe(GSP)(SupplyLine)(Main) 3 PlasticPipe(PR200)(SupplyLine)(Main) 3

Cell Text Weights for Standard Irrigation AbbreviationsAbbreviationsshallbeplacedonlevel5forexistingandonlevel50forproposed.UseFont=1,Text=1.8,Weight=1.

Instructions for Using EXISTING and PROPOSED Irrigation SymbolsTheinstructionsunderthe“ITEMDESCRIPTION”aregivenfor‘PROPOSED’and‘EXISTING’irrigationsymbols.Thesizesof‘EXISTING’irrigationitemsshouldbeshownonlywheretheContractorneedsinformationinordertoperformtheproposedwork.SizeinformationisnecessaryfortheContractor,forworksuchaswhenanexistingsupplyline(mainand/orlateral)isbeingconnected,wherepipewillbepulledthroughirrigationcrossoversandanyotherapplicableirrigationequipment.

Standard Irrigation Symbols / Irrigation Legend

Symbol For Existing

Symbol For Proposed

Item DescriptionAbbreviation

On PlanInstructionsaregivenfollowingitemdescriptionsforexistingandproposeditems.

Additionalinstructionsforproposeditemsareonpage5-4andexistingitemsareonpage 5-3.Water Meter (WM) Showsizeandabbreviationbesidesymbol.

Do not add (By Others)

Forexisting,showexistingsymbolonly.However,ifnewworkis tobeconnectedtotheWM,alsoshowsizeandabbreviationbesidesymbol.

WM

Backflow Preventer Assembly (BPA) Showsizeandabbreviationbesidesymbol.

Forexisting,showexistingsymbolonly.However,ifnewwork istobeconnectedtotheBPA,alsoshowsizeandabbreviationbesidesymbol.

BPA

Backflow Preventer Assembly In Enclosure (BPAE) ShowthesizeofBPAandabbreviationbesidesymbol.

Forexisting,showexistingsymbolonly.However,ifnewwork istobeconnectedtotheBPA,alsoshowsizeandabbreviationbesidesymbol.

BPAE


Symbol For Existing

Symbol For Proposed



Additionalinstructionsforproposeditemsareonpage5-4andexistingitemsareonpage 5-3.Backflow Preventer Enclosure (BPE) Showabbreviationbesidesymbol.

Forexisting,showexistingsymbolonly.

BPE

Booster Pump (BP) Showabbreviationbesidesymbol.


BP

Truck Loading Standpipe (TLS) Showabbreviationbesidesymbol.


TLS

Flow Sensor (FS) Showsizebesidesymbol.

Forexisting,showexistingsymbolonly

NONE

StandAlone(pedestalmountedorattachedtoastructure)IrrigationControllers For RICS Systems see page 5-7

Master Irrigation Controller (MIC) See below for instructions.

MIC – ‘A’12 Station

11 Stations Used

Auxiliary Irrigation Controller (AIC) See below for instructions.

AIC - ‘A’12 Station

11 Stations Used

Irrigation Controller (IC) See below for instructions.

IC - ‘A’12 Station

10 Stations Used

Irrigation Controller (IC) (Battery) See below for instructions.

IC Battery - ‘C’8 Station

8 Stations Used

Irrigation Controller (IC) (Solar) See below for instructions.

IC Solar - ‘A’8 Station

8 Stations Used

Standard Irrigation Symbols / Irrigation Legend continued

The following instructions apply to the above Irrigation Controllers:Whenthecontrollerisstandalone(pedestalmountedorattachedtoastructure),showthe“controller”symbol.Identifythesymbolwiththeappropriateabbreviation(MIC,AIC,IC,ICBATTERYorICSOLAR)alongwiththefollowing:

1.Thecontroller’suniqueletterdesignation,i.e.,A,B,C,etc.2.Thenumberofcontrollerstations,i.e.,16Station,12

Station,etc.3.Indicatenumberofstationsused,i.e.,15StationsUsed,

12StationsUsed,etc.

Forexistingshowtheexistingsymbolandabbreviationonplanthesameas“proposed.”

Note:Whencontroller(s)aretobeinstalledinacontrollerenclosurecabinet,use“IrrigationController(s)inControllerEnclosureCabinet(ICC)”onnextpage.


Symbol For Existing

Symbol For Proposed



Additionalinstructionsforproposeditemsareonpage5-4andexistingitemsareonpage5-3.Irrigation Controller(s) in Controller Enclosure Cabinet (ICC)

Whenirrigationcontrollersareinanenclosurecabinet,showthe“controllerenclosurecabinetsymbol”notthe“controller”symbol.

Theabbreviationbesidethesymbolshouldbethecontrollerenclosurecabinetabbreviation“ICC”*andthefollowingnotation:

1. Eachcontroller’suniqueletterdesignation, i.e.,A,B,C,etc.

2. Thenumberofcontrollerstations, i.e.,16Station,12Station,etc.

3. Thenumberofstationsused, i.e.,15StationsUsed,12StationsUsed,etc.

Use the abbreviation ICC only once for each enclosure cabinet.

* IfaMaster,AuxiliaryorBatterycontrollerisinstalledinanenclosurecabinet,identifythetypeofcontroller(s)(MIC,AIC,orBATTERY)tobeinstalledinthecabinetafterthecontrollerenclosurecabinetabbreviationICCandtheabovenotations.

Forexisting,showexistingsymbolandabbreviationbesidethesymbolonplanthesameasfor“proposed”.

ICC -’A’ and ‘B’ 12 Stations Each All Stations UsedOrICC -’A’ and ‘B’‘A’ -12 Station12 Stations Used ‘B’ -24 Station 20 Stations UsedOr*ICC -MIC ‘B’ and AIC ‘A’12 Stations Each‘B’ -10 Stations Used‘A’ -11 Stations UsedOr*ICC -AIC ‘C’ and ‘D’ ‘C’ -12 Stations Each10 Stations Used‘D’ -24 Station21 Stations UsedOr*ICC-Battery ‘A’ and ‘B’ 12 Stations Each‘A’ -10 Stations Used‘B’ -12 Stations UsedFor RICS Systems see page 5-7



Remote Irrigation Control System (RICS) IfaRICSisbeinginstalled,usean“ItemDescription”thatfitsthetypeofequipmentbeingidentifiedontheplansthatmatchesthedescriptionoftheequipmentspecifiedintheSpecialProvisionsandtheEngineersEstimate.UsetheICCsymbolandabbreviation(ICC)oncepercabinetandlisttheitemsbeinginstalled.Belowareafewexamples.AlsomakesuretheValveCodefortheRCV’sisshownontheplans.Seepage5-14.

Symbol For Existing

Symbol For Proposed



Additionalinstructionsforproposeditemsareonpage5-4andexistingitemsareonpage5-3.

Central Control Unit (CCU)ICC -CCU ‘1’12 Station11 Stations Used

Satellite Controller (SAT)SAT - ‘2’12 Station11 Stations Used

Field Unit

ICC-Field Unit-’10’12 Station11 Stations Used

TheFollowingInstructionsApplyToTheAboveRICSItems:1.IdentifytheabovesymbolwithICCfollowedwiththe

appropriatenameorabbreviation.Ifitisnon-standardbesuretoshowitinalegend.

2.TheRICScontroller’suniquenumberorletterdesignation,i.e.,1,2,3,etc.orA,B,C,etc. NOTE:MostRICSsystemsbeinginstalleduseanumberdesignation,i.e.,1,2,3,etc.ThesoftwareformostRICSsystemsdoesnotlettheuseruseletterstoidentifycontrollersorvalves.

3.Thenumberofcontrollerstations,i.e.,16Station, 12Station,etc.

4.Indicatenumberofstationsused,i.e.,15StationsUsed,12StationsUsed,etc.

Note: IftheaboveequipmentisgoingtobeinstalledinanexistingICCthenusetheControllerSymbolasshownonpage5-6besidetheExistingICCsymbol.MakesureyourSSP’scoverremovalofexistingequipmentfromthecabinet.IftheexistingICCisalsogoingtoberelocatedusetheproposedICCSymbolandplaceanRinsidethesymbol.Showthenewsymbolinalegend.UsetheControllerSymbolasshownonpage5-6besidetheExistingICCsymbol.ShowonesymbolforEACHcontrollerbeinginstalled.


Symbol For Existing

Symbol For Proposed



Additionalinstructionsforproposeditemsareonpage5-4andexistingitemsareonpage5-3.Control and Neutral Conductors (CNC)

Usestandardsymboltoshowroutingofconductors.SizesofconductorsarecoveredintheStandardSpecifications.

or

AddthefollowingIrrigationnotetotheirrigationplans(onetime):

“Controlandneutralconductorsroutingshallbethesameastheirrigationsystemsmainlinesunlessotherwiseshown.”

AndonlyshowtheCNCsymbolwhereitdoesn’tfollowthemainsupplylines.

Showing only where CNC that are not installed in main line trenches is faster but be sure to take your time in calculating the quantity of CNC for the estimate.


NONE

Sprinkler Control Conduit

UsetheSprinklerControlConduitsymbolwhenrigidmetallicconduitinstallationisnotcoveredbySection20-5.027I“Conductors,ElectricalConduitandPullBoxes”oftheStandardSpecifications.

Showsizebesidesymbol.

Wheninstallingonorinanexistingbridge(highwayplantingproject),labelwiththesizeandinstallationlocationbesidesymbol.See Irrigation Facilities To Be Installed On Bridge Or In Bridge on page 5-17 for additional important instructions.

When installing in a proposed bridge (highway construction project), see Irrigation Facilities To Be Installed On Bridge Or In Bridge on page 5-17 for additional important instructions.

Forexisting,showexistingsymbolonly.However,ifcontrolandneutralconductorsaretobeinstalledintheconduit,alsoshowsize.

Seepage5-17for Irrigation Control Wire Conduit Sizing Charts.

NONE

On Bridge*or

In Bridge*

*Installationlocation

Conduit SeeSection7page7-4through7-6fordiscussionsonconduitusedforIrrigationCrossoversonhowtoshowandlabelonplans.Irrigation Sleeve Showsizefortheirrigationsleevebesidethesymbol.UsewithSSP20-120.IrrigationSleevesarenotIrrigationCrossovers.

NONE



Symbol For Existing

Symbol For Proposed



Additionalinstructionsforproposeditemsareonpage5-4andexistingitemsareonpage5-3.Galvanized Steel Pipe (GSP) (Supply Line) (Main) Showbothsizeandabbreviationbesidesymbol.

Wheninstalledonorinanexistingbridge(highwayplantingproject),labelwiththesize,abbreviationandinstallationlocationbesidesymbol.See Irrigation Facilities To Be Installed On Bridge Or In Bridge on page 5-17 for additional important instructions.


Forexisting,showexistingsymbolandsize.

GSP

GSP On Bridge*

or

GSP In Bridge**Installationlocation

Ductile Iron Pipe (DIP) (Supply Line) (Main) Showsizebesidesymbol.

Wheninstalledonorinanexistingbridge(highwayplantingproject),labelwiththesizeandinstallationlocationbesidesymbol.See Irrigation Facilities To Be Installed On Bridge Or In Bridge on page 5-17 for additional important instructions.

When installed in a proposed bridge (highway construction project), see Irrigation Facilities To Be Installed On Bridge Or In Bridge on page 5-17 for additional important instructions.


NONE

On Bridge*or

In Bridge*


Galvanized Steel Pipe (GSP) (Supply Line) (Lateral) Showbothsizeandabbreviationbesidesymbol.

Wheninstallingonorinanexistingbridge(highwayplantingproject),labelwithsize,abbreviationandinstallationlocationbesidesymbol.See Irrigation Facilities To Be Installed On Bridge Or In Bridge on page 5-17 for additional important instructions.



GSP

GSP On Bridge*or

GSP In Bridge*


Plastic Pipe (PR200) (Supply Line) (Main) Plasticpipe(main)sizesshouldbeindicatednexttothepipe.

Forexisting,showexistingsymbolandsize

NONE

Plastic Pipe (PR200) (Supply Line) (Lateral)

Plasticpipe(lateral)sizesmaybeindicatedbythefollowingmethods:nexttothepipe,inpipesizingchartorinanirrigationnote,i.e.,Unlabeledlateralplasticpipesupplylineshallbe3/4”.


NONE



Symbol For Existing

Symbol For Proposed



Additionalinstructionsforproposeditemsareonpage5-4andexistingitemsareonpage5-3.Plastic Pipe (Irrigation Line) Plasticpipemaybesizedbythefollowingmethods:nexttothepipe,inpipesizingchartorinanirrigationnote,i.e.,Unlabeledlateralplasticpipeshallbe3/4”.

Note:Irrigationlineisflexible,non-rigidpipe.


NONE

Remote Control Valve (RCV) Remote Control Valve (Master) (RCVM)

ForRemote Control Valve (RCV)showtheValveCodebesidestandardsymbol.Seepage5-13.

ForRemote Control Valve (Master)(RCVM)showbothsizeandabbreviationbesidesymbol.

Forexisting,showexistingsymbolandtheValveCode.

For RICS see Valve Codes on page 5-14.

NONE

RCVM

Manual Control Valve (MCV) Show“ValveCode”besidestandardsymbol.See page 5-13.


NONE

Valve Assembly Unit (VAU) ForValveAssemblyUnitshowtheValveCodebesidestandardsymbol.See page 5-13.


NONE

WYE Strainer (WS)* WS

Gate Valve (GV)* GV

Ball Valve (BV)* BV

Quick Coupling Valve (QCV)* Ifthequickcouplingvalvesaretobeinstalledwithaswingjoint,anirrigationnotemaybeusedtodenotethisrequirement.

TheSprinklerScheduleshouldnotbeusedtoidentifyquickcouplingvalves.

QCV


*Note:Unlessotherwisenoted,thesenotesapply.Showbothsizeandabbreviationbesidesymbol.Anirrigationnoteontheplansmaybeusedifallvalvesarethesamesize.Forexample,“WyeStrainersshallbe2””or“CheckValvesshallbe2”unlessotherwisenoted.

Forexisting,showexistingsymbolonly.However,ifnewworkistobeconnectedtotheexistingitem,alsoshowsizeandabbreviationbesidesymbol.


Symbol For Existing

Symbol For Proposed



Additionalinstructionsforproposeditemsareonpage5-4andexistingitemsareonpage5-3.

Pressure Reducing Valve (PRV)* PRV

Pressure Relief Valve (PRLV)* PRLV

Flow Control Valve (FCV)* FCV

Combination Air Release Valve (CARV)* CARV

Check Valve (CV)* CV

Flush Valve (FV) Showsymbolonly.Allflushvalveswillbe3/4”asshownonStandardPlanH7.

Iftheflushvalvesareallonedifferentsizethanthestandard,addanirrigationnoteontheplans,i.e.,“Flushvalvesshallbe2”.

Ifflushvalvesaredifferentsizesshowthesizeandabbreviationbyeachflushvalve.

Forexisting,showsymbolonly.

NONE

Nozzle Line W / Turning Union (NL) Showbothsizeandabbreviation.Pipesizesmaybeindicatedbythefollowingmethods:nexttothepipe,inpipesizingchartorinanirrigationnote.


NL

Irrigation System Showsymbolonly.


NONE

Irrigation System To Be Removed Showsymbolonly.

Forexisting,showexistingsymbolandsizeswhenappropriate.

NONE


*Note:Unlessotherwisenoted,thesenotesapply.Showbothsizeandabbreviationbesidesymbol.Anirrigationnoteontheplansmaybeusedifallvalvesarethesamesize.Forexample,“PressureReliefValvesshallbe2””or“FlowControlValvesshallbe2”unlessotherwisenoted.

Forexisting,showexistingsymbolonly.However,ifnewworkistobeconnectedtotheexistingitem,alsoshowsizeandabbreviationbesidesymbol.


Symbol For Existing

Symbol For Proposed



Additionalinstructionsforproposeditemsareonpage5-4andexistingitemsareonpage5-3.Chain Link Gate

Showwidth,typeofgateandheightbesidesymbol,i.e.,4’GATE(CL-6).Thisindicatesafourfootwidegateinasixfoothighchainlinkfence.


GATE (CL- )

Sprinkler W / Sprinkler Protector Showstandardsymbolforthesprinklertypewithinthesquarestandardsymbolforsprinklerprotector.


NONE

Quick Coupling Valve W/ Sprinkler Protector Showstandardsymbolforquickcouplingvalvewithinthestandardsymbolforsprinklerprotector.

Showbothsizeandabbreviationbesidesymbol.

Anirrigationnoteontheplans,i.e.,QuickCouplingValvesshallbe3/4”,maybeusedinlieuofshowingthesizeforeachquickcouplingvalveifallvalvesarethesamesize.

Ifthequickcouplingvalvesaretobeinstalledwithaswingjoint,anirrigationnotemaybeusedtodenotethisrequirement.


QCV

Cam Coupler Assembly Showabbreviationbesidesymbol.

NONE

Connect To Existing System Showaleadlinefromthe“diamond”totheactualpointofconnection.


NONE

Cap CappingaproposedsupplyLine.

Existingcaponanexistingsupplyline.Showsymbolonly.

NONE

Cap Existing Cappinganexistingsupplyline.

Showsymbolonly.

NONE



Valve CodesRCVSize

IrrigationController

ControllerStation

ValveinParallel(IfApplicable)

GAL/minute

QuantityofSprinklers (WhenShown)

*50–A–2b–151.4–60

MCVSize

ValveNumber

GAL/minute

QuantityofSprinklers(WhenShown)

*50–7–101.4–60

*ValveCodesforExitingValvesareshowninaDashedEnclosure.

Non-Standard Irrigation Symbols / Irrigation Legend

Approved Non-Standard Symbols For

Existing

Approved Non-Standard Symbols For

Proposed

Approved Item DescriptionAbbreviation

On Plan

F F

Remote Control Valve (Master) W/Flow Meter (RCVMF)

ForRemoteControlValve(Master)w/FlowMetershow “ValveCode”besidesymbol.See page 5-14. This item is used on RICS systems.

Forexisting,showexistingsymboland“ValveCode”.

An Irrigation Legend for the symbol must be placed on the Irrigation Plans.

SeenextpageforsuggestedValveCode.

NONE


Valve Code for RICS Example: Valve Code for RICS when no other irrigation system exists.

RCVSize

CCU1-IrrigationClusterControlUnit

SAT2-IrrigationSatelliteController

RCVStationNumber

GallonsPerMinute(GPM)

QuantityOfSprinklers (WhenShown)

XX-19(X)-XX-XX-XX

1 Useappropriatetypeofcontroller(CCUorMASTER,ETC.)asspecifiedinthespecialprovisions.

2 Useappropriatetypeofcontroller(SLAVEorFIELDUNIT,ETC.)asspecifiedinthespecialprovisions.

Note:Bothoftheabovecalloutsmaynotbenecessary.Showthecomponentsthatarebeingusedinthefield.AdjustValveCodeasnecessary.Valve Code MUST be in Legend.

Example: Valve Code used when converting existing irrigation systems to RICS.VALVE CODE

CCU1

SAT2

RCVStationNumber3

IrrigationController4

ControlValveStation5

19(XX)-XXX-XX(NEWCODE)(EXISTCODE)

1 Useappropriatetypeofcontroller(CCUorMASTER,ETC.)asspecifiedinthespecialprovisions.

2 Useappropriatetypeofcontroller(SLAVEORFIELDUNIT,ETC.)asspecifiedinthespecialprovisions.

Note:Bothoftheabovecalloutsmaynotbenecessary.Showthecomponentsthatarebeinginstalledthefield.AdjustValveCodeasnecessary.

3 NewRCVstationnumber.Forexample:1,2,etc.4 ExistingIrrigationControllercallout.Forexample:‘A’,‘B’,

etc.5 ExistingRCVstationnumber.Forexample:1,2,etc.

Note:ValveCodeMUSTbeinLegend.

Approved Non-Standard Valve Code(MustshowValveCodeontheIrrigationPlans)

VALVE CODE for RCVMFRCVMFSize

CCU

SAT

X(X)-(XX) (Useappropriatenameortypeofcontrollerusedasspecifiedinthespecialprovisions.)


Irrigation Symbols Sheet w/Cadd Cell Names


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Irrigation Control Wire Conduit Sizing Charts*Basedonstds&infofromD5electrical(MohdGani)7/00

For New Jobs (Based on 26% Fill Sched 40 ID)

14 Gauge UF Control Wires 12 Gauge UF Control Wires 10 Gauge UF Control Wires

NumberofWires

SizeofConduitNumberof

WiresSizeofConduit

NumberofWires

SizeofConduit

19 1-1/2”(40mm) 16 1-1/2”(40mm) 13 1-1/2”(40mm)

31 2”(50mm) 26 2”(50mm) 22 2”(50mm)

44 2-1/2”(65mm) 37 2-1/2”(65mm) 31 2-1/2”(65mm)

68 3”(75mm) 58 3”(75mm) 49 3”(75mm)

For Rehab Jobs (Based on 35% Fill Sched 40 ID)

14 Gauge UF Control Wires 12 Gauge UF Control Wires 10 Gauge UF Control Wires

NumberofWires

SizeofConduitNumberof

WiresSizeofConduit

NumberofWires

SizeofConduit

25 1-1/2”(40mm) 21 1-1/2”(40mm) 18 1-1/2”(40mm)

42 2”(50mm) 35 2”(50mm) 30 2”(50mm)

60 2-1/2”(65mm) 50 2-1/2”(65mm) 43 2-1/2”(65mm)

92 3”(75mm) 78 3”(75mm) 66 3”(75mm)

ID=InsideDiameterUF=Multiconductorsheathedcabletype

Irrigation Facilities to be Installed “On Bridge” Or “In Bridge”

Highway Planting ProjectsWhenitisnecessarytoplaceirrigationfacilities,i.e., SprinklerControlConduit,DuctileIronPipeandGalvanizedSteelPipe,onorinanexistingbridge,approvalmustbeobtainedfromtheOfficeofStructuresMaintenanceandInvestigations(OSMI).

FurnishOSMIwithirrigationplansheetsandproposedPipeAnchordetail(s)(TypeIorTypeII)ofStandardPlanH9,andproposedstandardspecialprovisionsearlyinthedesignprocess.OSMIwilleitherapprovetheproposalor,ifunusualconditionswarrantspecialdesignwork,providespecificplans,details,andspecialprovisions.Also,OSMIshouldbeincludedonthelistforfinaldistrictPS&Ereview.

Highway Construction ProjectsWhenirrigationfacilities,i.e.,SprinklerControlConduit,DuctileIronPipeandGalvanizedSteelPipe,areinstalledinaproposedbridge,showthefollowingnote(s)ateachapplicablestructureontheirrigationplan:

• ForSprinklerControlConduit:“SeeElectricalplans.”• ForDuctileIronPipeandGalvanizedSteelPipe:“See

Structureplans.”

NOTE:WhentheirrigationfacilitiesarebeinginstalledinanexistingbridgefollowtheinstructionsrequiredofaHighwayPlantingProjectaboveforgettingapproval.


Irrigation NotesIrrigationnotes,whenneeded,areplacedonthefirstsheetoftheirrigationplans.Ifthereisnotenoughroomtoshowthenotesonthefirstpage,anoteMUSTbeshowntodirecttheContractortowherethenotesarelocated,i.e.,IrrigationnotesarelocatedonsheetLD-I.However,whennotesarespecificforaparticularlocationoranunusualcircumstance,theyareplacedonthesheetwheretheworkisshown.Notesshallonlybeshownonce.Donotrepeatthenotesoneachplansheetexceptforthenotediscussedonpage5-17under“Highway Construction Projects”andthefollowingnote:

Required note at the bottom of each irrigation plan sheet:

All Irrigation Equipment Sizes Are Shown In Inches (Diameter Nominal) Unless Otherwise Noted.

Afewexamplesoftypicalgeneralnotesthathavebeenused:

•PlasticPipe(SupplyLine)(Main)shallbe2”,unlessotherwiseshown.

•QuickCouplingValvesshallbe3/4”andshallbeinstalledonaSwingJointTypeIandaSprinklerProtectorTypeI.

•AllGateValvesshallbe2”unlessotherwisenoted.•UnlabeledPlasticPipe(PR200)(SupplyLine)downstream

ofthevalveshallbe3/4”unlessotherwisenoted.•PlasticPipe(SupplyLine)downstreamoftheRCVshall

beonesizelargerthantheRCVunlessotherwisenoted.• LengthofflexiblehoseonRiserTypeVshallbea

minimum2’.•Sprinklers(TypeC),whenlocatedonslopes,shallbe

installedontheuphillsideofthebasin.•Valves,WyeStrainers,BackflowPreventerAssemblies,

andQuickCouplingValvesshownneargates,shallbeinstalled10to12feetfromthegate.

•PlantsinPlantGroup‘A’shallhaveSprinklers(TypeC-2)withadischargerateof0.25GPMandPlantGroup‘B’shallhaveSprinklers(TypeC-2)withadischargerateof0.50GPM.

•ExistingIrrigationCrossoversconsistofan8”conduitwitha3”WaterlineCrossover,a2”SprinklerControlCrossoverandtwo#5pullboxesateachend,unlessotherwisenoted.

Irrigation Notes That Should Not Be Shown On Plans

•THEIRRIGATIONPLANSAREDIAGRAMMATIC.ThisiscoveredintheStandardSpecificationsSection20-5.03Installation,whichstates:wTheirrigationsystemsasshownontheplans,except

forsprinklerlocations,arediagrammatic.

•DonotaddsprinklerspecificationsasirrigationnotesthatcanbeshownontheSprinklerSchedule.AllsprinklerspecificationsmustbeshownontheSprinklerSchedule.

Acceptable Pipe Sizing Chart

Size Of PipeQuantity Of Sprinklers

Type E-53/4” 1-16

1” 17-26

11/4” 27 - 44

11/2” 45-60

2” 61-90

21/2” 91 - 135

Unacceptable Pipe Sizing Chart

Size Of Pipe Maximum GPM

3/4” 10

1” 15

11/4” 25

11/2” 35

2” 55

21/2” 80


Irrigation Restoration ProjectsIn the debate of whether to specify an all new irrigation system vs. using existing facilities, is it cost effective to utilize existing lateral facilities?

Inordertomakeaneducatedassessmentofthevalueofusingexistingfacilitiesvs.installingnewfacilities,onemusthaveanunderstandingofthetypeofcostsfacedwhenperformingextraworkonaforceaccountbasistorepairexistinglateralfacilities.

Lookupthecurrentstraight-timehourlyrateforutilizingtheservicesofalandscape/irrigationlaborer,normallyusedforthistypeofwork.Thiswageratemayvaryfromdistricttodistrict,butisfairlyaccuratethroughouttheState.Ontopofthisrate,wearerequiredtopayalaborsurchargeof18%tocompensatethecontractorforstatutorypayrollitemsstipulatedbyvariousgovernmentalagencies.Anadditionalmarkupof33%isrequiredtocoverthecostsofoverhead,insurance,bondingandprofit.Sometimes,wehavetopaysubsistenceandtravelallowance,furtherincreasingtherate.Equipmentandmaterialusagealsomustbeconsidered.Assumingastandard3/4tonorsmallerpickuptruckisusedinperformanceofthework,lookupthecurrenthourlyrate,andaddamarkupof15%.Anymaterialsincorporatedintheworkwillbepaidatinvoicepriceplus15%markup.Insummary,thisparticularoperationwillendupcostingtheStatethetotaloftheaboveperhourforlaborandequipmentusage+theaddedcostofthematerials.Pleasekeepinmindthatifthelandscapecontractorisasubcontractor,anadditional5%mustbepaidontopofeverythingelse!

Consideringalloftheabove,theconditionandageoftheexistingfacilitiesmustbethedeterminingfactorindecidingthe‘new’vs.‘old’debate.Ifextensiverepairsarenecessarytotheexistingirrigationfacilities,thecostsaregoingtoincreaseatasignificantrate.

Calculateaweek’sworthofrepairsinlaborandequipmentusage.Materialcostsareextra.Itmaybefarcheapertoabandontheexistinglaterallines,duetothelaborintensiveefforttomakealltheidentifiedrepairs,whilesalvagingtheexistingsprinklerstobeincorporatedintothenewlines.However,iftheexistinglineswerejustrecentlyinstalled,nottoomanyrepairsmaybenecessary,anditmaybedeemedlessexpensivetoreutilize.Sincewearedealingwithanexistingsystem,futurerepairsmaybecomenecessaryandwillberequiredtobepaidforbytheState.DesignersmustcommunicatewithMaintenancepersonneland‘fieldcheck’toascertainthemostcost-effectivealternative.Concurrently,thedesignermustconsidertheadministrativedutiesassociatedwithextraworkthatmustbeperformedbyconstructionpersonnel.


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Irrigation Plan w/CADD Information


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Documents

Landscape Architecture General PS & E Guide · Irrigation Plans 5-2 Caltrans Landscape Architecture PS & E Guide The condition of existing irrigation crossovers must be evaluated